FAN7930C 是一款有源功率因数校正 (PFC) 控制器，用于在临界导通模式 (CRM) 模式下运行的升压 PFC 应用。它使用电压模式 PWM，将内部斜坡信号与误差放大器输出进行比较，产生 MOSFET 关断信号。因为电压模式 CRM PFC 控制器不需要整流后的交流线路电压信息，所以节省了电流模式 CRM PFC 控制器所需的输入电压感应网络的功率损耗。FAN7930C 提供过电压保护 (OVP)、开路反馈保护、过电流保护 (OCP)、输入电压缺失检测，以及欠压锁定保护 (UVLO)。PFC 就绪引脚可用于在 PFC 输出电压达到带有迟滞的正确水平时触发其他功率级。如果 INV 引脚电压低于 0.45V，运行电流降至非常低的水平，FAN7930C 则可以禁用。通过使用新型的可变导通时间控制方法，THD 低于传统的 CRM 升压 PFC 集成电路。
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FAN7930CMX
Obsolete
Pb
A
H
P
SOIC-8
1
260
REEL
2500
N
CrCM/BCM
Variable
Voltage Mode
Step-Up
Variable
24
220 / 220
12
No
No
No
Price N/A
More Details
FAN7930CMX-G
Active
Pb
A
H
P
SOIC-8
1
260
REEL
2500
Y
CrCM/BCM
Variable
Voltage Mode
Step-Up
Variable
24
220 / 220
12
No
No
No
$0.3831
More Details
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